1 Vaginal itching: Introduction. 2  Sweating and Vaginal itching and Bleeding symptoms (3 causes) 3  Sweating and Vaginal itching and Body symptoms (3 causes) 4  Sweating and Vaginal itching and Chills (3 causes)  Sweating and Vaginal itching and Female genital symptoms (3 causes)
Before the advent of smoking it was very rare to find cancer in the lungs. In fact, in 1878, only 1 percent of autopsies performed at the Institute of Pathology of the University of Dresden in Germany found cancers in the lungs. Almost 40 years later, that number had risen to 14 percent.
All cancers are caused by mutations in the DNA of cancer cells which are acquired during a person's lifetime. The studies, of a malignant melanoma and a lung cancer, reveal for the first time essentially all the mutations in the genomes of two cancers. Lung cancer causes around one million deaths worldwide each year: almost all are associated with smoking.